rs759957857
Variant summary
Our verdict is Uncertain significance. The variant received 3 ACMG points: 4P and 1B. PM1PM2BP6
The NM_004656.4(BAP1):c.184G>T(p.Val62Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,274 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V62I) has been classified as Likely benign.
Frequency
Consequence
NM_004656.4 missense
Scores
Clinical Significance
Conservation
Publications
- BAP1-related tumor predisposition syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Ambry Genetics, G2P, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
- Kury-Isidor syndromeInheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, G2P
- renal cell carcinomaInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
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ACMG classification
Our verdict: Uncertain_significance. The variant received 3 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| BAP1 | NM_004656.4 | c.184G>T | p.Val62Phe | missense_variant | Exon 4 of 17 | ENST00000460680.6 | NP_004647.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152274Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.00000408 AC: 1AN: 245116 AF XY: 0.00000754 show subpopulations
GnomAD4 exome Cov.: 32
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152274Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74404 show subpopulations
ClinVar
Submissions by phenotype
BAP1-related tumor predisposition syndrome Uncertain:2
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This sequence change replaces valine, which is neutral and non-polar, with phenylalanine, which is neutral and non-polar, at codon 62 of the BAP1 protein (p.Val62Phe). This variant is present in population databases (rs759957857, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with BAP1-related conditions. ClinVar contains an entry for this variant (Variation ID: 412436). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on BAP1 protein function. RNA analysis performed to evaluate the impact of this missense change on mRNA splicing indicates it does not significantly alter splicing (Invitae). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
The p.V62F variant (also known as c.184G>T), located in coding exon 4 of the BAP1 gene, results from a G to T substitution at nucleotide position 184. The valine at codon 62 is replaced by phenylalanine, an amino acid with highly similar properties. This variant has been identified in an individual with cutaneous melanoma and renal cell carcinoma (Ambry internal data) and has been reported in the literature, although specific clinical characteristics of the individual were not reported (Walpole S et al. J Natl Cancer Inst, 2018 12;110:1328-1341). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at